Elevating-truck.



W. H. THQRNBURG. ELBVATING TRUCK.

APPLIOATIOH FILED AI". 9,'1910. w Mgg Patented Jan. 1o, 1911.

n] 4 asuma-sum1.

W.. H.' TEORNBURG.

ELEVATING TBUGK. APPLIOATIOE I'LBD APILQ. 1910.

Patented Jan. 10,1911.

Z SHEETS-SHEET 2.

franielO to raise or lower the truck.

the front axle 38.

thereof toward their extremities. The traveling bars 30 and 3o are provided with threaded apertures adjacent their ends to receive the shafts 17 therethrough. The bolster 32 is arched downwardly at its central portion and carries a bolt 36 which extends downwardly through a fifth wheel 37Y to support The axle 3S is provided upon its opposite ends with rollers 39 for supporting the frame. The bolt 36 carries the forward end o a reach bar 40 which eX- tends baekwardly and rests upon the upper face of the rear axle 26. T he reach bar 40 is provided with a returned portion 4l which is spaced dmvnwardly therefrom lto form a loop for the reception of the axle 26. The axle QG is preferably provided with spaced collars 4Q which are carried against the oppositesides of the reach bar 40 to hold the same centrally upon the axle E2C.

W hen the handle 23 is rotated the spur gear il() is carried therewith and rotates the pinions 18. This movement of the pinions revolves the shai't- 17 to turn the same through the traveling bars 30 and As the threads upon the ends of the shaft 17 are of opposite pitch the bars 30 and 35 will be moved toward or from each other in accordance with the direction in which the handle 23 is turned. lhe traveling bars 3() and 35 respectively carry the movable links 28 and 32 to swing the axle 2G and the bolster 32 downwardly -from er upwardly against the Any adaptable size of pinions 18 and spur gear S20 may be employed to vary the ratio therebetween so to effect the raising of light or heavy weights, or in accordance with the work which is to vbe accomplished by the improved truck.

Having thus described the invention what is claimed as new issl. An. elevating truck including a frame, links hinged at the 4opposite ends of the frame, axles carried in the lower ends of the links, a pair of shafts longitudinally journaled ,in the frame and having threads or" opposite pitch upon their ends, traveling bars engaging in threaded relation over the ends of said shafts and adapted for longitudinal movement within the frame, traveling links hinged between the said axlesv and said traveling bars, braces arranged in the opposite ends ot the frame for supporting said shafts, the forward ends of said shafts extending through the frame pinions rigidly carried upon the outer en s of the shafts, andan intermeshing gear-wheel arranged between the pinions for imparting rotation to the shafts.

2. -An elevating truck including an elon# gated frame, U-shaped braces arranged within the opposite ends of the frame, shafts in the braces and having their extremities reduced for engagement therethrough, revolving means for simultaneously actuating said shafts7 traveling-bars disposed in spaced and threaded relation on the ends of said shafts and adapted for longitudinal movement in lthe frame, axles hingedly carried by the frame, and traveling links arranged between the axles and said traveling-bars for adjusting the distance between the axles and the frame. I

In testimony whereof I atlix my signature in presence of two witnesses.

WILLIAM E. THORNBURG. Witnesses E. d. DELMORE, MARY SAUNDERS.

a. si l 

